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Jlenok [28]
3 years ago
10

Is CO2 a compound, molecule, or atoms/elements?

Chemistry
2 answers:
Lunna [17]3 years ago
4 0

Answer:

CO2 is a compound cause there is more then one

baherus [9]3 years ago
3 0

Answer:

Co2 is a molecule

Explanation:

Carbon dioxide is a molecule with the molecular formula CO2. Carbon dioxide, CO2, is a colorless gas. It is made of two oxygen atoms covalently bonded to one carbon atom. ... Carbon Dioxide: CO2 : chemical compound composed of two oxygen atoms covalently bonded thttps://www.google.com/imgres?a single carbon atom.

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Which is a nonrenewable source of energy?<br> Wind <br> Hydropower <br> Natural Gas<br> Solar Energy
pashok25 [27]

Answer:

Natural Gas

Explanation:

Let's remember: A non-renewable resource means a source that is used faster than it can be replaced. The sun will always be there for solar energy. Wind will always be there for wind energy. Hydropower isn't always there, but it is a semi-renewable source because it is replenished relatively fast. We are left with natural gas, and it takes millions of years to replace.

5 0
3 years ago
Please fill out completely for my understanding. Thank-You!
Archy [21]

The atomic number,atomic mass,valence electrons and the formula for calculating the number of neutrons is also given.The following table has been completed below in the attachment.

Explanation:

Atomic Number:the number of protons /electrons present in the nucleus of an atom is called the atomic number.

Mass Number/Atomic Mass:the number of protons and neutrons present in a nucleus

<u>Example:</u>C_{6} ^{12};here;6 implies the atomic number and 12 implies the mass number/atomic mass

<u><em>No.of neutrons=Mass number-Number of protons</em></u>

Valence electrons:the number of electrons present in the outer most shell of an atom are called valence electrons

<u>Example:</u>If we consider a carbon atom;as its <em>e</em><em>lectronic configuration is2,4 and</em>  it belongs to 4th group.Therefore the number of valency electrons in carbon is <u>4.</u>

8 0
3 years ago
Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other h
11Alexandr11 [23.1K]

Complete question:

Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other has carbon tetrachloride as the solvent. Determine that molal concentration, m (or b), and boiling point, Tb.

benzene boiling point=80.1 Kb=2.53

carbon tetrachloride boiling point=76.8 Kb=5.03

Answer:

m = 1.32 mol/kg

Boiling point: 83.4°C

Explanation:

When a nonvolatile solute is added to a pure solvent, the boiling point of the solvent increases, a phenomenon called ebullioscopy. This happens because of the interactions between the solute and the solvent. The temperature variation (new boiling point - normal boiling point) can be calculated by:

ΔT = m*Kb*i

Where m is the molal concentration (moles o solute/mass of solvent in kg), Kb is the ebullioscopy constant of the solvent, and i is the van't Hoff factor, which indicates how much of the solute dissociates. Let's assume that i is equal in both solvents and equal to 1 (the solvent dissociates completely)

Calling the new boiling point as Tb, for benzene:

Tb - 80.1 = m*2.53*1

Tb = 2.53m + 80.1

For carbon tetrachloride:

Tb - 76.8 = m*5.03*1

Tb = 5.03m + 76.8

Because Tb and m are equal for both:

5.03m + 76.8 = 2.53m + 80.1

2.5m = 3.3

m = 1.32 mol/kg

So, substituting m in any of the equations (choosing the first):

Tb = 2.53 * 1.32 + 80.1

Tb = 83.4°C

3 0
3 years ago
Read 2 more answers
What are rotation and revolution and how do they affect Earth?
Ivenika [448]

Answer:

Rotation refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

7 0
2 years ago
A travel mug of 91∘C coffee is left on the roof of a parked car on a cold winter day. The temperature of the coffee after t minu
GREYUIT [131]

Answer: A

Explanation:

3 0
3 years ago
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